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NSN 6650-00-683-9552, 6650006839552
LENS,OPTICAL INSTRUMENT

Federal Supply Classification
FSC 6650 - Optical Instruments, Test Equipment, Components and Accessories
National Item Identification Number
NIIN 006839552
Codification Country
United States
Item Name Code
INC 21884
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 6650-00-683-9552

National Stock Number (NSN) 6650-00-683-9552, or NIIN 006839552, (lens,optical instrument) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 21884. [AN UNMOUNTED, TRANSPARENT, COLOR FREE LENS WHICH MAY BE TREATED WITH A LOW REFLECTION COATING TO INCREASE LIGHT TRANSMISSION. INCLUDES SINGLE AND COMPOUND ELEMENTS. FOR ITEMS HAVING TWO PLANE PARALLEL SURFACES, SEE WINDOW, OPTICAL INSTRUMENT. EXCLUDES:RETICLE, OPTICAL INSTRUMENT.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6650006839552 does not contain precious metals.

This NSN is associated to Schedule B 9018500000: other ophthalmic instruments and appliances and parts and accessories. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339112: surgical and medical instrument manufacturing.

This information was last updated on .


Technical Characteristics

ELEMENT LEFT SURFACE RADIUS
(CTKW) 1.635 INCHES
ELEMENT RIGHT SURFACE RADIUS
(CTKX) 2.523 INCHES
ABBE CONSTANT
(BMMZ) 58.800 AND 32.200
BACK FOCAL LENGTH
(BMMT) 2.359 INCHES
AXIAL THICKNESS
(BMLY) 0.807 INCHES NOMINAL AND 0.161 INCHES NOMINAL
COMPOUND LENS EDGE THICKNESS
(BMMP) 0.375 INCHES NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS
(BMMN) 0.968 INCHES NOMINAL
COMPOUND LENS STYLE
(BMSC) DOUBLET
DIAMETER
(ABMZ) 1.629 INCHES NOMINAL
EQUIVALENT FOCAL LENGTH
(BMMS) 3.030 INCHES
FSC APPLICATION DATA
(ZZZV) TELESCOPE,M105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT
INDIVIDUAL LENS STYLE
(BMSD) DOUBLE CONVEX AND PLANO-CONCAVE
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
MATERIAL
(MATT) GLASS OPTICAL
REFRACTION INDEX
(BMMX) 1.6110 NOMINAL AND 1.6730 NOMINAL
MATERIAL
(MATL) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C
III MATERIAL
(MATL) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
III FSC APPLICATION DATA
(ZZZV) TELESCOPE,M105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT

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